Hi,
I want to use a mech. fuel pump with a 1/2 fuel line (rear to front). My engine produces 400 hp and is street used.
Is it correct to join a 1/2 line to a smaller inlet of a pump (3/8 or 1/4) or the best is to enlarge the inlet of the pump ?
If this 1/2 inlet pump that doesn't require regulator exists (6-8 psi

), let me know.
Thanks.